import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入一个整数：");
        int num = scanner.nextInt();
        if (num % 7 == 0) {
            System.out.println(num + " 是7的倍数");
        } else {
            System.out.println(num + " 不是7的倍数");
        }
    }
}